To make Darkened Smooth Glass, make a chest shape in the crafting table gui with Smooth Glass and add an ink sac in the middle.

To Make Hardened Glass, make a chest shape in the crafting table gui with vanilla glass and add obsidian in the middle.

To make colored glass, make a chest shape in the crafting table gui with vanilla glass and add the respectable dye into the middle (No magenta, gray and light gray make grey glass).

To make X-Ray glass, make a chest shape in the crafting table gui and place a diamond in the middle. (Expensive, yes, worth it? Yes!)

To make stairs, make the same shape in the crafting table gui as you would for vanilla stairs, but insted use the respectable kind of glass. (Cyan > Cyan Stairs, Vanilla Glass > Glass Stairs, Hardened Glass > Hardened Glass Stairs, etc)

Installation:

Download and install Minecraft Forge installer

Download Super Glass Mod

Make a folder called ‘mods’ in your .minecraft folder and add in the SuperGlass zip file